To change your
direct deposit information that was carried over from last year in TurboTax,
follow the instructions in the TurboTax FAQ below:
https://ttlc.intuit.com/replies/5619072
If you have already
submitted your return, unfortunately, if it has been accepted (or mailed),
there is no way to change your account for direct deposit. However, when the
refund is returned to the IRS they will mail you a paper check.
https://ttlc.intuit.com/replies/3302459